How to cultivate new animal species?

Transgene: Generally speaking, it is the process of transferring genes from one organism to another organism or different varieties of the same organism. Generally speaking, transgene is achieved through sexual reproduction. For example, the pollen (including male gametes) of plants "runs" from one plant to another plant through different media, or "runs" to the pistil (including female gametes) in the flowers of another variety of the same plant and hybridizes with it. This hybridization process produces gene transfer. Similarly, taking cats as an example, different breeds and types of cats have different offspring from their parents after mating, which is due to gene transfer. Therefore, transgene occurs every day in nature, but in nature, gene transfer has no goal, and both good and bad genes can be transferred to different biological individuals together. At the same time, the transgene through natural hybridization is strictly controlled within the same species (especially animals) or between related plant species. In order to increase crop yield, improve crop quality and enhance crop resistance to diseases, insect pests and stress, human beings often use artificial hybridization and distant hybridization for breeding, hoping to transfer beneficial genes from different varieties or even wild relatives to popularized varieties. This kind of transgene through artificial hybridization has increased its uses and cultivated thousands of excellent varieties for human consumption. However, the method of artificial hybridization-transgene still has many limitations, such as: genes cannot be transferred between distant species, there are still a lot of unwanted genes and even harmful genes in the transferred genes, and the efficiency of transgene is slow. In order to solve the above problems, scientists use modern biotechnology to locate, isolate and clone the genes we need, and then transfer the target genes into our target biological species through vectors. This process of gene transfer through biotechnology is what we often say now. There is no essential difference between natural and traditional genes transferred by artificial hybridization, but this transgenic technology has a strong purpose-only transferring needed genes and rejecting all unnecessary and harmful genes, which greatly improves the efficiency of transgenic and speeds up the process of variety improvement. At the same time, modern tomb-moving technology can also transfer the genes of distant organisms, even synthetic genes, to the varieties we need, expanding the available germplasm resources. Knowing about genes and transgenes, it is not difficult to understand what is genetically modified organisms and what is genetically modified food. At present, what we call transgenic organisms (plants or animals) is to transfer isolated and cloned genes into a certain organism by using transgenic biotechnology. Such organisms are genetically modified organisms, and foods produced and processed with these genetically modified organisms are called genetically modified foods. For example, genetically modified soybeans and their bean products such as soybean oil, tofu, soy sauce, and fermented soybean are all genetically modified foods. Through the above introduction, we know that genetically modified organisms use an efficient biotechnology to transfer genes to the target organisms we need more purposefully and economically. This creature, such as wheat, rice, soybean and tomato, can provide more and better characteristics that human beings expect. Of course, because transgenic technology and transgenic products are still in the stage of research, development and perfection, some unfavorable factors may be caused to human body and environment. However, it must be clear that all genetically modified products approved by national laws have passed the national food safety inspection and should be safe for human health under normal circumstances. In fact, according to the reports of relevant data, more than 60% of the150,000 tons of soybeans imported from the United States every year are genetically modified soybeans. Therefore, we may have eaten genetically modified soybean products. So far, no matter in the United States or China, there are no reports of health damage caused by the use of these soybeans and their products.